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Established 2004

Ruddlesden geotechnical

Ruddlesden geotechnical provides ground investigation, geotechnical consultancy and contamination assessment services.

Based in Exeter, but covering the whole of the UK, albeit primarily concentrated in the South West, Ruddlesden geotechnical was formed in 2004.

Ruddlesden geotechnical works on behalf of a wide client base, including local, regional and national housing developers, housing associations, commercial developers, building contractors, structural and civil engineers, architects, building consultants, quantity surveyors, local authorities and private individuals.

Development projects range from single dwellings and extensions to large housing estates, multi-storey flats, offices, industrial units, roads, slopes, schools, hospitals and basements.

The services and projects listed on this web-site provide an indication of those undertaken by Ruddlesden geotechnical, but others are carried out. If your requirement is not readily identifiable on this web-site, please contact us as we may still be able to help you.

  • AGS
  • Constructionline
  • CSCS
  • SMAS
  • ECFC trust

Latest news

Recent projects

  • Latest news

    14 May 2026

    MSc Student to Help with BRE 365 Soakaway Project

    At Ruddlesden geotechnical, we often provide work experience to university students over the summer. This pleases both parties, as it provides them with invaluable industrial experience and a bit of pocket money, and helps us cover staff holidays, as well acting as an extended job interview, should a suitable vacancy arise in the future.This summer, we are particularly looking forward to welcoming Bailey, from the University of Portsmouth, who will be doing his MSc dissertation with us. He will be working and extending on an on-going project of ours. He will be reviewing all of our soakaway testing data and correlating this with the published geology, and then asking the question, and potentially providing the answer: does BRE soakaway testing need to be carried out in certain geologies?We have been reliably informed that he is a GIS whizz and are hopeful that he is what the project needs to take it to the next level.

    MSc Student to Help with BRE 365 Soakaway Project
    MSc Student to Help with BRE 365 Soakaway Project

  • Recent projects

    UKAS Accredited Testing for Residential Development in Somerset

    Extensive geotechnical and contamination laboratory testing was recently undertaken as part of a ground investigation for proposed residential development site on the outskirts of Weston-super-Mare. In addition to classification (plastic and liquid limits and particle size distribution) tests, quick undrained triaxial and oedometer consolidation tests were carried out to provide information for foundation design. pH and soluble sulphate testing (BRE SD1 suite) was also undertaken to confirm the buried concrete class requirements. A broad range of contamination testing, including asbestos, heavy metals, polyaromatic hydrocarbons (PAH) and total petroleum hydrocarbons (TPH), was undertaken to provide information for human health and controlled waters risk assessments. The testing was UKAS accredited and Ruddlesden geotechnical’s close working relationships with both the laboratories helped ensure the testing results were issued promptly.

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  • Recent projects

    Validation Testing in Somerset to Satisfy NHBC and Local Authority

    Ten years after carrying out the original contamination investigation and assessment, Ruddlesden geotechnical returned to the site to carry out the validation testing of the remedial works. The validation testing included hand-excavated trial pits in garden areas, to obtain samples for laboratory testing to confirm the cleanliness of the capping soil in garden areas and to provide a photographic record of the depth of the capping layer, as well as documentary evidence of the gas protection measuresand upgraded water supply pipes. The site visit was attended promptly and the laboratory testing was expedited, following which the report was issued without delay, to ensure they were no problems with sales.

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